Oil leaking on my GL1100


Information and questions on GL1100 Goldwings (1980-1983)
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Gnosistika
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1982 GL1100 (Apple)

Oil leaking on my GL1100

Post by Gnosistika » Tue May 31, 2016 8:06 am



Hi Guys,

Another post in a list about getting the old girl running again properly.

So the weekend past I took the bike out for a ride, a pleasant two hour cruise and she was going wonderfully. Then this morning however when I checked in on her to wash her on my off day I was met with a disturbing site - There was oil leaking [slow drip] from: the oil filter cap, from the oil drain plug, oil spray from the tachometer area, oil from the rear engine gasket. She now has less than a quarter of oil when I check the oil level. Also need to mention that there is no longer any oil dripping.

This is quite frankly freaking me out. When I rode her last i detected no hot oil smells and after i put her up there were no leaks. The only thing that changed is that the temperature has dropped to the low 2ºC (35 F) as we now entered winter here over the last number of days (not that is relevant at all). I have been so vigilant in checking everything - the carb balance was supposed to be the last bit of work to finally get her going... Was I blind or ignorant of any signs that I could have detected beforehand?

Ideas?


"Of all the the things I have lost, I miss my mind the most"

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chrisz
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Re: Oil leaking on my GL1100

Post by chrisz » Tue May 31, 2016 9:46 am

Well this may be an issue of old gaskets being dry/brittle and with the lower temperatures (constriction) of the gasket materials, and now you have leaks. If you just had one small leak, I would suggest trying some liquid 'stop leak' in a can solution, but in your case it may be simply time to replace the affected gaskets. (I'm assuming no excessive gas pressure build-up in the engine and regular dino motor oil is being used of the recommended weight.)

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WingAdmin
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Re: Oil leaking on my GL1100

Post by WingAdmin » Tue May 31, 2016 10:34 pm

I would clean all the oil off, then run the bike and see if you can figure out where it is coming from. I doubt you've suddenly got multiple leaks all over, more likely you've got one leak that has sprayed oil all over everything else.

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Gnosistika
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1982 GL1100 (Apple)

Re: Oil leaking on my GL1100

Post by Gnosistika » Thu Jun 02, 2016 5:58 am

@WingAdmin

I did the little test but had to wait till this morning for evidence. The oil is coming from the oil filter area, I think that maybe the O-Ring failed, although it is new. The only other I discovered is oil spray from the tachometer area - where the cable enters the machine.

Thank you again sir. Really appreciate your assistance.
"Of all the the things I have lost, I miss my mind the most"

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WingAdmin
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Re: Oil leaking on my GL1100

Post by WingAdmin » Sun Jun 05, 2016 4:30 pm

Gnosistika wrote:@WingAdmin

I did the little test but had to wait till this morning for evidence. The oil is coming from the oil filter area, I think that maybe the O-Ring failed, although it is new. The only other I discovered is oil spray from the tachometer area - where the cable enters the machine.

Thank you again sir. Really appreciate your assistance.
Could also be the O-ring didn't seat properly, or rolled or pinched.

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Gnosistika
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1982 GL1100 (Apple)

Re: Oil leaking on my GL1100

Post by Gnosistika » Thu Jun 23, 2016 10:52 am

Thank you guys for your help, much appreciated.

Strangest thing though. I had two oil-filter housings, the one that came with the bike and a second i picked up off from a guys selling his goldwing for spares - nice chrome piece it is too. I had put the chrome cover on and that when it started leaking. I replaced the o-ring first as @Wingadmin suggested but it kept leaking. Only after I put the original cover back did the leaking stop completely.

I had a look at the chrome to cover and to my eyes they seem identical...maybe it is from an Aspy or another model, though the seller insisted it was an '82. Strange things indeed.

Thank you again for the help gents!
"Of all the the things I have lost, I miss my mind the most"

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RBGERSON
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Re: Oil leaking on my GL1100

Post by RBGERSON » Thu Jun 23, 2016 12:31 pm

Probably not flat/flush edge; aftermarket stuff not always true!! Or bad o ring..?? didn't you change/swap the o rings with the filters or kept them together with the filter housing???

Note, If i remember correctly all the oil filter housings 75 to 83 are the same..different bolt heads sizes i forget if they got bigger or smaller but that changed..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

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Doolin05
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Re: Oil leaking on my GL1100

Post by Doolin05 » Fri Sep 29, 2017 8:37 pm

Hello everyone, I just read this thread as I have a slight oil leak issue that's bugging me. After a drive I'm finding a slight leak of a drop or two collecting under the oil drain plug. It seems to be coming from the filter housing. I changed the oil and replaced the filter and o-rings and crush washer on plug, but still I find a drip hanging off the bottom of engine a inch behind the drain plug after a drive....errrg!
I'm thinking of taking the filter cover off and setting it on a sheet of wet/dry sandpaper on a flat surface and sanding it...to the eye it seems flush on the engine,..does this seem like a bad idea?

Best regards!

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DenverWinger
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Re: Oil leaking on my GL1100

Post by DenverWinger » Sat Sep 30, 2017 8:51 am

Also check the weep hole on the water pump, it is in the same general area. If the water pump seals are getting tired it can weep oil or antifreeze depending on which seal is failing.
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WingAdmin
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Re: Oil leaking on my GL1100

Post by WingAdmin » Sat Sep 30, 2017 11:03 am

Spray the whole area with brake cleaner to remove every vestige of oil, then spray it with a talcum powder deodorant. When you run the engine, the oil will leave a black track in the talcum powder, identifying exactly where it is coming from.

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Doolin05
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Re: Oil leaking on my GL1100

Post by Doolin05 » Sun Oct 01, 2017 8:47 pm

Thanks for the nifty tip with the talc, I will try that for sure. It does seem to be that the oil filter cover is the culprit tho, I had the bike running today to sync the carbs...with my new carbtune pro and there was a drop or two hanging off the bottom. Thankfully the weep hole is dry...I did replace the water pump recently as that was toast.
Another possibility is the aftermarket magnetic oil drain plug I got, I notice that it doesn't have as much contact area on the crush washer as the oem one does so I am going to put the oem one back on.

Anyone have a way to keep the carb sync screw where you want it when tightening the lock nut? I get the carbs all nice and even, then manage to turn the carb sync screw ever so slightly when tightening the nut up...driving me nuts!



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